Polybrominated diphenyl ethers in birds of prey from Northern China
Polybrominated diphenyl ethers in birds of prey from Northern China
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DOI：
10.1021/es062045r
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发表时间：
2007-03-15
影响因子：
11.4
通讯作者：
Hale, Robert C.
中科院分区：
文献类型：
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作者：
Chen, Da;Mai, Bixian;Hale, Robert C.
对中国北方（北京地区）的猛禽进行了多溴联苯醚（PBDEs）的检测。共分析了来自8个不同物种的47份标本。分别分析每只鸡的肌肉和肝脏。按种属合并肾脏。普通红隼的多溴二苯醚浓度最高（肌肉和肝脏的平均浓度分别为12 300和12 200纳克/克脂重），每只鸟肌肉中的最高浓度为31 700纳克/克脂重，肝脏中的最高浓度为40 900纳克/克脂重。某些物种的同系物概况各不相同，但一般以溴化程度较高的同系物为主（例如，BDE-153、BDE-209、BDE-183、BDE-207）。与其他已发表的报告相比，BDE-209的浓度尤其高。同系物浓度和分布的种间差异可能是由于饮食、行为或生物转化能力。在79.4%的样本中检测到BDE-209。普通红隼的BDE-209浓度水平最高（肌肉中的平均值/最高值为2150/6220纳克/克脂重，肝脏中的平均值/最高值为2870/12200纳克/克脂重）。BDE-209是某些秃鹰、角鸮和长耳鸮组织中的主要同系物。它是常见红隼中含量第二高的同类物。BDE-209的显著水平和主导地位可能与中国大量生产、使用或处置含十烷产品有关。这些观察结果强化了一种日益增长的观点，即使用陆地食物链的生物可能会更多地接触BDE-209。
Birds of prey from Northern China (Beijing area) were examined for polybrominated diphenyl ethers (PBDEs). A total of 47 specimens from eight different species were analyzed. Muscle and liver were analyzed separately for each bird. Kidneys were pooled by species. Common kestrels exhibited the highest PBDE levels (mean muscle and liver concentrations of 12 300 and 12 200 ng/g lipid weight, respectively), with maxima in an individual bird of 31 700 in muscle and 40 900 ng/g lw in liver. Congener profiles differed between some species, but were generally dominated by the more brominated congeners (e.g., BDE-153, -209, -183, -207). BDE-209 was especially elevated compared to other published reports. Interspecies differences in congener concentrations and profiles may be due to diet, behavior, or biotransformation capacities. BDE-209 was detected in 79.4% of the samples. Common kestrels contained the highest BDE-209 levels (mean/maxima of 2150/6220 in muscle and 2870/12 200 ng/g lw in liver). BDE-209 was the dominant congener in tissues from some buzzards, scops owls, and long-eared owls. It was the second most abundant congener in common kestrels. The remarkable levels and dominance of BDE-209 may relate to significant production, usage, or disposal of deca-containing products in China. These observations reinforce the growing view that organisms using terrestrial food chains may have greater exposure to BDE-209.